linux-kernel - Re: [PATCH 1/2] net/ipv4: queue work on power efficient wq

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Message-Id: <20140122.215806.1379497605051046823.davem@davemloft.net>
Date:	Wed, 22 Jan 2014 21:58:06 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	viresh.kumar@...aro.org
Cc:	linaro-kernel@...ts.linaro.org, patches@...aro.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] net/ipv4: queue work on power efficient wq

From: Viresh Kumar <viresh.kumar@...aro.org>
Date: Wed, 22 Jan 2014 12:23:32 +0530

> Workqueue used in ipv4 layer have no real dependency of scheduling these on the
> cpu which scheduled them.
> 
> On a idle system, it is observed that an idle cpu wakes up many times just to
> service this work. It would be better if we can schedule it on a cpu which the
> scheduler believes to be the most appropriate one.
> 
> This patch replaces normal workqueues with power efficient versions. This
> doesn't change existing behavior of code unless CONFIG_WQ_POWER_EFFICIENT is
> enabled.
> 
> Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>

Applied.
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